JPH0458801U - - Google Patents
Info
- Publication number
- JPH0458801U JPH0458801U JP10000190U JP10000190U JPH0458801U JP H0458801 U JPH0458801 U JP H0458801U JP 10000190 U JP10000190 U JP 10000190U JP 10000190 U JP10000190 U JP 10000190U JP H0458801 U JPH0458801 U JP H0458801U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- optical head
- magneto
- optical
- objective lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は、この考案の光磁気デイスク装置の磁
界印加装置について、その要部構成の一実施例を
示す斜視略図、第２図は、第１図に示した磁界印
加装置について、駆動電流と発生される磁界との
関係を説明するための図、第３図は、従来の光磁
気デイスク装置の磁界印加装置について、その要
部構成の一例を示す斜視略図。
図面において、１は光磁気デイスク、１１は第
１の光学ヘツド、１２は第１の対物レンズ、１３
は第１のコイル、１４は第２の光学ヘツド、１５
は第２の対物レンズ、１６は第２のコイル。
FIG. 1 is a schematic perspective view showing an embodiment of the main structure of the magnetic field application device of the magneto-optical disk device of this invention, and FIG. 2 is a schematic perspective view of the magnetic field application device shown in FIG. FIG. 3, which is a diagram for explaining the relationship with the generated magnetic field, is a schematic perspective view showing an example of the main part configuration of a magnetic field applying device of a conventional magneto-optical disk device. In the drawing, 1 is a magneto-optical disk, 11 is a first optical head, 12 is a first objective lens, and 13 is a first optical head.
is the first coil, 14 is the second optical head, 15
is the second objective lens, and 16 is the second coil.
Claims (1)
気デイスクの第１の面に光ビームを照射して情報
の記録／再生／消去を行なう第１の光学ヘツドと
、第２の面に光ビームを照射して情報の記録／再
生／消去を行なう第２の光学ヘツドとを備え、該
第１と第２の光学ヘツドを前記光磁気デイスクの
同一の半径方向に移動可能に設けた光磁気デイス
ク装置において、 前記第１の光学ヘツドの対物レンズの移動方向
に沿つた開口部を有する第１のコイルと、前記第
２の光学ヘツドの対物レンズの移動方向に沿つた
開口部を有する第２のコイルとを備えたことを特
徴とする磁界印加装置。 ２ 実用新案登録請求の範囲第１項記載の磁界印
加装置において、 第１のコイルと第２のコイルは、対物レンズが
移動する領域を取り囲む長円形であることを特徴
とする磁界印加装置。[Claims for Utility Model Registration] 1. A first optical head that records/reproduces/erases information by irradiating a light beam onto the first surface of a magneto-optical disk capable of recording/reproducing/erasing information on both sides. and a second optical head for recording/reproducing/erasing information by irradiating a second surface with a light beam, and the first and second optical heads are arranged in the same radial direction of the magneto-optical disk. In the magneto-optical disk device, the first coil has an opening along the moving direction of the objective lens of the first optical head, and the first coil has an opening along the moving direction of the objective lens of the second optical head. A magnetic field application device comprising: a second coil having a parallel opening. 2 Utility Model Registration The magnetic field applying device according to claim 1, wherein the first coil and the second coil are oval shapes surrounding the area in which the objective lens moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10000190U JPH0458801U (en) | 1990-09-25 | 1990-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10000190U JPH0458801U (en) | 1990-09-25 | 1990-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458801U true JPH0458801U (en) | 1992-05-20 |
Family
ID=31842327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10000190U Pending JPH0458801U (en) | 1990-09-25 | 1990-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458801U (en) |
-
1990
- 1990-09-25 JP JP10000190U patent/JPH0458801U/ja active Pending
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